Effects of Aramid Fiber and Polytetrafluoroethylene on the Mechanical and Tribological Properties of Polyimide Composites in a Vacuum | |
Department | 先进润滑与防护材料研究发展中心 |
Zheng F(郑菲)1,2; Wang QH(王齐华)1; Wang TM(王廷梅)1; Wang QH(王齐华) | |
The second department | 固体润滑国家重点实验室 |
2015 | |
Source Publication | Journal of Macromolecular Science Part B Physics |
ISSN | 0022-2348 |
Volume | 54Issue:8Pages:927-937 |
Abstract | Polyimide composites filled with aramid fiber (AF) and polytetrafluoroethylene (PTFE) were prepared by hot press molding. The thermal, mechanical, and tribological properties of the composites were studied systematically. The friction and wear behavior, sliding against GCr15 steel balls, were evaluated in a ground-based wear in space simulation facility using a ball-on-disk tribosystem. The morphologies of the worn surfaces during the sliding process of the composites were analyzed by scanning electron microscopy to reveal the wear mechanism. It was found that the heat-resisting performance and the hardness of the composites were minimally affected by the additives. The flexural strength of polyimide/AF/PTFE (PI-3) decreased when PTFE was added. The wear resistance increased and the coefficient of friction decreased due to the effect of both fillers. In vacuum, the friction coefficients of polyimide (PI-1), polyimide/AF (PI-2), and PI-3 increased slightly with sliding velocity, while the opposite results were obtained in air. With the increase of air pressure the friction coefficients of the samples increased. |
Keyword | Aramid Fiber Friction Polyimide Polytetrafluoroethylene Wear |
Subject Area | 材料科学与物理化学 |
DOI | 10.1080/00222348.2015.1035611 |
Funding Organization | The National Science Foundation for Distinguished young Scholars of China (51025517);the National Defense Basic Scientific Research Project (A1320110011) |
Indexed By | SCI |
If | 0.620 |
Language | 英语 |
Funding Project | 聚合物自润滑复合材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/18519 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang QH(王齐华) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
Recommended Citation GB/T 7714 | Zheng F,Wang QH,Wang TM,et al. Effects of Aramid Fiber and Polytetrafluoroethylene on the Mechanical and Tribological Properties of Polyimide Composites in a Vacuum[J]. Journal of Macromolecular Science Part B Physics,2015,54(8):927-937. |
APA | Zheng F,Wang QH,Wang TM,&王齐华.(2015).Effects of Aramid Fiber and Polytetrafluoroethylene on the Mechanical and Tribological Properties of Polyimide Composites in a Vacuum.Journal of Macromolecular Science Part B Physics,54(8),927-937. |
MLA | Zheng F,et al."Effects of Aramid Fiber and Polytetrafluoroethylene on the Mechanical and Tribological Properties of Polyimide Composites in a Vacuum".Journal of Macromolecular Science Part B Physics 54.8(2015):927-937. |
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LZ01028411.pdf(753KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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